marvell: pm: do not panic by default in cpu_standby

Current default behavior of cpu_standby callback
is problematic during the SBSA test, which is
unable to run due to EL3 panic. Make it dependent on
the PM firmware running.

Change-Id: I7a53de8c880bd23b157dd65ce14bb48b5a5c76c8
Signed-off-by: Marcin Wojtas <mw@semihalf.com>
Reviewed-by: Grzegorz Jaszczyk <jaz@semihalf.com>
Reviewed-by: Kostya Porotchkin <kostap@marvell.com>
1 file changed